Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbon/carbon composite material crucible with silicon-carbon-nitrogen oxygen-free coating and preparation method of carbon/carbon composite material crucible
The invention provides a carbon/carbon composite material crucible with a silicon-carbon-nitrogen oxygen-free coating and a preparation method of the carbon/carbon composite material crucible, and relates to the technical field of crucible preparation. According to the method, phenolic resin is used for densifying the carbon/carbon composite material crucible, a PIP technology is adopted, and the high-density carbon/carbon composite material crucible is impregnated for more than two times by using a PIP impregnation liquid containing polycarbosilane, polysilazane and a binder, so that the high-density carbon/carbon composite material crucible is fully impregnated in the PIP impregnation liquid; and the PIP impregnation liquid on the surface of the crucible subjected to heat treatment is subjected to in-situ reaction to generate the silicon-carbon-nitrogen oxygen-free coating, and the interlayer binding force is high. The silicon-carbon-nitrogen oxygen-free coating effectively seals holes of the carbon/carbon composite material crucible, improves density, prevents silicon liquid from permeating, effectively prevents the carbon/carbon composite material crucible from being corroded and damaged, improves high-temperature mechanical properties and silicification corrosion resistance, and remarkably prolongs the service life of the carbon/carbon composite material crucible.
本发明提供了一种具有硅碳氮无氧涂层的碳/碳复合材料坩埚及其制备方法，涉及坩埚制备技术领域。本发明利用酚醛树脂对碳/碳复合材料坩埚进行增密，采用PIP工艺，利用含有聚碳硅烷、聚氮硅烷和粘结剂的PIP浸渍液将对高密度碳/碳复合材料坩埚进行浸渍2次以上，使高密度碳/碳复合材料坩埚充分浸渍PIP浸渍液，进而提高硅碳氮无氧涂层的均匀性和致密性，经热处理后坩埚表面的PIP浸渍液原位反应生成硅碳氮无氧涂层，层间结合力强。硅碳氮无氧涂层对碳/碳复合材料坩埚进行有效封孔，提高致密度，防止硅液渗透，有效防止碳/碳复合材料坩埚被腐蚀破坏，提高高温力学性能和抗硅化腐蚀性能，显著延长碳/碳复合材料坩埚的使用寿命。
Carbon/carbon composite material crucible with silicon-carbon-nitrogen oxygen-free coating and preparation method of carbon/carbon composite material crucible
The invention provides a carbon/carbon composite material crucible with a silicon-carbon-nitrogen oxygen-free coating and a preparation method of the carbon/carbon composite material crucible, and relates to the technical field of crucible preparation. According to the method, phenolic resin is used for densifying the carbon/carbon composite material crucible, a PIP technology is adopted, and the high-density carbon/carbon composite material crucible is impregnated for more than two times by using a PIP impregnation liquid containing polycarbosilane, polysilazane and a binder, so that the high-density carbon/carbon composite material crucible is fully impregnated in the PIP impregnation liquid; and the PIP impregnation liquid on the surface of the crucible subjected to heat treatment is subjected to in-situ reaction to generate the silicon-carbon-nitrogen oxygen-free coating, and the interlayer binding force is high. The silicon-carbon-nitrogen oxygen-free coating effectively seals holes of the carbon/carbon composite material crucible, improves density, prevents silicon liquid from permeating, effectively prevents the carbon/carbon composite material crucible from being corroded and damaged, improves high-temperature mechanical properties and silicification corrosion resistance, and remarkably prolongs the service life of the carbon/carbon composite material crucible.
本发明提供了一种具有硅碳氮无氧涂层的碳/碳复合材料坩埚及其制备方法，涉及坩埚制备技术领域。本发明利用酚醛树脂对碳/碳复合材料坩埚进行增密，采用PIP工艺，利用含有聚碳硅烷、聚氮硅烷和粘结剂的PIP浸渍液将对高密度碳/碳复合材料坩埚进行浸渍2次以上，使高密度碳/碳复合材料坩埚充分浸渍PIP浸渍液，进而提高硅碳氮无氧涂层的均匀性和致密性，经热处理后坩埚表面的PIP浸渍液原位反应生成硅碳氮无氧涂层，层间结合力强。硅碳氮无氧涂层对碳/碳复合材料坩埚进行有效封孔，提高致密度，防止硅液渗透，有效防止碳/碳复合材料坩埚被腐蚀破坏，提高高温力学性能和抗硅化腐蚀性能，显著延长碳/碳复合材料坩埚的使用寿命。
Carbon/carbon composite material crucible with silicon-carbon-nitrogen oxygen-free coating and preparation method of carbon/carbon composite material crucible
一种具有硅碳氮无氧涂层的碳/碳复合材料坩埚及其制备方法
JIANG JIE (Autor:in) / JIA LINTAO (Autor:in) / SUN ZHULIN (Autor:in) / ZHAO QIANG (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
Preparation method of carbon/carbon composite material crucible
| Europäisches Patentamt | 2020
Preparation method of carbon/carbon/silicon carbide composite material crucible
| Europäisches Patentamt | 2021
Carbon-carbon composite material crucible and preparation method thereof
| Europäisches Patentamt | 2022